Has Your Makeup Expired?

Chances are you are slathering on expired makeup.

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"Like food, makeup has an expiration date, and over time cosmetics can harbor harmful bacteria that can lead to infections," states Dr. David Schlessinger, a board-certified oculoplastic surgeon and ophthalmologist, and medical director of Schlessinger Eye & Face. "The risks are multiplied when these products are shared among friends."

Check out the dates below and find out when you should toss your makeup stash.

Expiration dates — beginning from the time you first open these products

Powders and shadows: 2 years

Cream shadows: 12 to 18 months

Foundation: 1 year

Lipstick & lipliner: 1 year

Mascara & eyeliners: 3 months

Makeup brushes: Clean weekly using a mild detergent

Makeup sponges: Replace weekly, or when sponge becomes soiled

Tips for keeping your skin clean and your makeup fresh

— Smell your cosmetics; if they have an unusual odor, they may contain bacteria and should be discarded.

— Always make sure that products are closed tight and stored out of sunlight, as this can destroy the preservatives.

— Don't use any eye products if you currently have an eye infection.

— Never add any liquids to products unless directed by the manufacturer.

— If there are any changes in color and texture, dispose of the product immediately.

— Avoid sampling makeup at department stores when possible. If you do test, never apply directly from the makeup. Instead, use a clean, disposable applicator (i.e., cotton swab, sponge) to apply cosmetics.